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SIX BankMaster

IID 08881

SIX SIS AG, Zürich

IID / BC-Nummer08881
InstitutionSIX SIS AG
Institution typebank
IID typebranch
Headquarters IID08880
SeatPfingstweidstrasse 110, 8005 Zürich
BICINSECHZZXXX
Payment servicesSIC · RTGS CHF · euroSIC · LSV+/BDD CHF
SIC IID088816
QR-IIDnone
Valid on2026-09-01

IBAN structure with this code

A Swiss IBAN is CH, two check digits, the five-digit IID, then a twelve-digit account part. When the institution holds a QR-IID, the QR-IBAN of a QR-bill carries that number in the same position.

CH53 0888 1000 0000 0000 1

Synthetic example: the account part is a placeholder, this IBAN belongs to nobody. It shows where the code sits inside the IBAN.

What the API answers for this code

The block below is the route's own answer, produced by the same code that serves api.ibanforge.com, on the register as of the date shown. Nothing is edited.

{
  "iid": "08881",
  "found": true,
  "institution": {
    "name": "SIX SIS AG",
    "type": "bank",
    "iid_type": "branch",
    "headquarters_iid": "08880"
  },
  "address": {
    "street": "Pfingstweidstrasse",
    "building_number": "110",
    "post_code": "8005",
    "town": "Zürich",
    "country": "CH"
  },
  "bic": "INSECHZZXXX",
  "payment_services": {
    "sic": true,
    "rtgs_chf": true,
    "instant_payments_chf": false,
    "eurosic": true,
    "lsv_bdd_chf": true,
    "lsv_bdd_eur": false
  },
  "sic_iid": "088816",
  "qr_iid": null,
  "qr_iid_source": null,
  "valid_on": "2026-09-01"
}

Other codes of the same institution

Check an IBAN in the playgroundAudit a whole creditor fileSwiss clearing numbers (IID / BC-Nummer)

Source: SIX BankMaster, register as of 2026-09-01.